We had this problem overnight. I just reran FB for the period 12 Sun to 00z Monday starting with step 1. I can't figure out where this is coming from. Any ideas?
Ken,
Could you post similar pictures with snow ratios? From what I can tell on my side in GLD our forecaster created those western seams for some reason, but that would not explain the max you see.
-Jeremy
Thanks for looking into it Andy,
Sounds like you are on the right track!